AT45DB642D-TU vs AT45DB321D-TU

This in-depth comparison of the AT45DB642D-TU and AT45DB321D-TU provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

AT45DB642D-TU

Adesto Technologies

Lifecycle
Active
Stock
6357 PCS
Package
TSOP-28
Series
Memory
Part B

AT45DB321D-TU

Adesto Technologies

Lifecycle
Active
Stock
2290 PCS
Package
TSOP-28
Series
Memory

Need help validating a replacement?

Send your BOM and application constraints for technical and sourcing review.

Full specification comparison

Use manufacturer datasheets as the final authority.

Specification AT45DB642D-TU AT45DB321D-TU
Part Status Obsolete Obsolete
Memory Type Non-Volatile Non-Volatile
Memory Format FLASH FLASH
Technology FLASH FLASH
Memory Size 64Mb (1056 Bytes x 8192 pages) 32Mb (528 Bytes x 8192 pages)
Memory Interface SPI SPI
Clock Frequency 66 MHz 66 MHz
Write Cycle Time - Word Page 6ms 6ms
Voltage - Supply 2.7V ~ 3.6V 2.7V ~ 3.6V
Operating Temperature -40°C ~ 85°C (TC) -40°C ~ 85°C (TC)
Mounting Type Surface Mount Surface Mount